Display apparatus having pattern of slits on top-common electrode

ABSTRACT

A display apparatus including a first substrate, a second substrate and a display medium is provided. The display medium is disposed between the first substrate and the second substrate. The first substrate includes a first data line, a second data line and a pixel. The first data line and the second data line respectively disposed over a first base plate. The pixel includes a pixel electrode layer and a common electrode layer. The pixel electrode layer is electrically connected to one of the first data line and the second data line. The common electrode layer is formed over the pixel electrode layer and includes a first slit nearest to the first data line. The first slit has a first end and a second end. The first slit is bent at the first end of the first slit but is not bent at the second end of the first slit.

This is a continuation application of U.S. application Ser. No.15/203,750, filed on Jul. 6, 2016, which claims the benefit of People'sRepublic of China application Serial No. 201510454606.7, filed on Jul.29, 2015, the subject matter of which is incorporated herein byreference.

BACKGROUND OF THE INVENTION Field of the Invention

The disclosure relates in general to a display apparatus, and moreparticularly to a display apparatus having pattern of slits on a commonelectrode formed over a pixel electrode layer.

Description of the Related Art

Nowadays, electronic products with display panel have becomeindispensable necessities to modern people in their everyday life, work,study, and entertainment. Examples of electronic products include smartphones, PC tablets, notebooks, monitors and TVs. Of the above electronicproducts, display apparatus with liquid crystal display (LCD) panel ismost popular. Particularly, LCD apparatus, having the advantages ofsimple application, lightweight, portability, lower cost, higherreliability, and being friendly to viewers' eyes, has replaced cathoderay tube (CRT) monitor and become the most popular display apparatus.The LCD apparatus also provides a diversity of choices in terms of size,shape and resolution.

During the manufacturing process of a display apparatus, many detailsneed to be considered. For example, during the patterning process of ametal layer and a semiconductor layer (such as using lithography andetching), high accuracy is required, lest the wires might be broken.Also, relative position and pattern design of each layer need to assurethat the final product of the display apparatus has more stable andsuperior electronic properties and meet various requirements of productspecification. If the display apparatus has poor design, both conformityrate and reliability will deteriorate, and display quality will beaffected.

SUMMARY OF THE INVENTION

The disclosure is directed to a display apparatus. Through specialpattern design of slits on the common electrode formed over the pixelelectrode layer, display quality of the display apparatus is improvedand becomes more stable, and product conformity rate is increased.

According to one embodiment of the disclosure, a display apparatus isprovided. The display apparatus includes a first substrate, a secondsubstrate, and a display medium disposed between the first substrate andthe second substrate. The first substrate includes a gate line, a firstdata line and a second data line, wherein the first data line and thesecond data line are disposed over a first base plate and intersect withthe gate line to define a pixel. The pixel includes a pixel electrodelayer electrically connected to one of the first data line and thesecond data line, and a common electrode layer formed over the pixelelectrode layer. The common electrode layer at least includes a firstslit nearest to the first data line and a second slit nearest to thesecond data line. The first slit has a first end portion adjacent to thegate line, a second end portion away from the gate line, and a firststraight portion disposed between the first end portion and the secondend portion to connect the first end portion and the second end portion.The second slit has a third end portion adjacent to the gate line, afourth end portion away from the gate line, and a second straightportion disposed between the third end portion and the fourth endportion to connect the third end portion and the fourth end portion. Alargest distance from the edge of the first end portion near the firstdata line to the first data line is defined as a first distance. Alargest distance from the edge of the second end portion near the firstdata line to the first data line is defined as a second distance. Alargest distance from the edge of the third end portion near the seconddata line to the second data line is defined as a third distance. Alargest distance from the edge of the fourth end portion near the seconddata line to the second data line is defined as a fourth distance. Thefirst distance is smaller than the second distance. The third distanceis larger than the fourth distance.

According to another embodiment of the disclosure, a display apparatusis provided. The display apparatus includes a first substrate, a secondsubstrate, and a display medium disposed between the first substrate andthe second substrate. The first substrate includes a gate line, a firstdata line and a second data line, wherein the first data line and thesecond data line are disposed over a first base plate and intersect withthe gate line to define a pixel. The pixel includes a pixel electrodelayer electrically connected to one of the first data line and thesecond data line, and a common electrode layer formed over the pixelelectrode layer. The common electrode layer at least includes a firstslit nearest to the first data line and a second slit nearest to thesecond data line. The first slit has a first end portion adjacent to thegate line, a second end portion away from the gate line, and a firststraight portion disposed between the first end portion and the secondend portion to connect the first end portion and the second end portion.The second slit has a third end portion adjacent to the gate line, afourth end portion away from the gate line, and a second straightportion disposed between the third end portion and the fourth endportion to connect the third end portion and the fourth end portion. Afirst end portion tangent line of the first end portion parallel to thegate line, a first edge extension line of the first straight portionadjacent to the first data line, and an edge of the first end portionnear the first data line form a first area A1. A second end portiontangent line of the second end portion parallel to the gate line, thefirst edge extension line, and an edge of the second end portion nearthe first data line form a second area A2. A third end portion tangentline of the third end portion parallel to the gate line, a second edgeextension line of the second straight portion adjacent to the seconddata line, and an edge of the third end portion adjacent to the seconddata line form a third area A3. A fourth end portion tangent line of thefourth end portion parallel to the gate line, the second edge extensionline, and an edge of the fourth end portion near the second data lineform a fourth area A4. The first area is smaller than the second areaand the third area is larger than the fourth area.

The above and other aspects of the disclosure will become betterunderstood with regard to the following detailed description of thepreferred but non-limiting embodiment (s). The following description ismade with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a top view of two adjacent pixels of a display apparatusaccording to a first embodiment of the present disclosure.

FIG. 2A shows a cross-sectional view of a pixel of a display apparatusalong a cross-sectional line 2A-2A of FIG. 1.

FIG. 2B shows a cross-sectional view of a pixel of a display apparatus,wherein the first slit nearest to the first data line already exposes aportion of the first data lines thereunder.

FIG. 3 shows a top view of two adjacent pixels of a display apparatusaccording to a second embodiment of the present disclosure.

FIG. 4A and FIG. 4B respectively show a top view of two adjacent pixelsof a display apparatus according to a third embodiment of the presentdisclosure, and respectively have 3 slits and 2 slits in a pixel region.

FIG. 5 shows a schematic diagram of a single pixel of the presentdisclosure.

FIG. 6 shows another schematic diagram of a single pixel of the presentdisclosure.

FIG. 7A shows an alternate schematic diagram of a single pixel of thepresent disclosure.

FIG. 7B shows a cross-sectional view of FIG. 7A using a horizontal lineHL1 as a cross-sectional line.

FIG. 8 shows a top view of two adjacent pixels of a display apparatus aaccording to a fourth embodiment of the present disclosure.

FIG. 9 shows a top view of two adjacent pixels of a display apparatusaccording to a fifth embodiment of the present disclosure.

FIG. 10 shows a top view of two adjacent pixels of a display apparatusaccording to a sixth embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

According to a display apparatus disclosed in an embodiment of thepresent disclosure, electric properties of the display apparatus areimproved through special pattern design of slits on the common electrodeformed over the pixel electrode layer. For example, after the pixel isturned on, the slit pattern of the common electrode layer can compressthe generated dark crinkles to be near gate lines. During operation, theelectric field between electrode layers will not be interfered with bythe signals, hence avoiding the display quality of the pixel displaybeing affected. For example, the pixel might illuminate when it shouldnot be turned on. Thus, the design of the embodiment increases productconformity rate, and provides more stable and superior display qualityto the display apparatus manufactured according to the disclosed design.

The embodiment of the present disclosure can be used in an arraysubstrate of a display apparatus. Exemplarily but not restrictively, thearray substrate is such as an array substrate (thin-film transistorsubstrate) of a liquid crystal display apparatus with fringe filedswitching (FFS) display mode.

A number of implementations of the present disclosure are disclosedbelow with reference to accompanying drawings. It should be noted thatthe structure and description of the implementations of the presentdisclosure are for exemplary purpose only, not for limiting the scope ofprotection of the present disclosure. Although the present disclosuredoes not illustrate all possible embodiments, a person ordinary skilledin the part can make necessary modifications or adjustments to fitactual needs without breaching the spirit and scope of the presentdisclosure. Therefore, the embodiments of the present disclosure canalso be used in other implementations not disclosed in the presentdisclosure. Moreover, the accompanying drawings are already simplifiedto more clearly illustrate the embodiment of the present disclosure, andthe dimension scales used in the accompanying drawings are not based onactual proportion of the product. Therefore, the specification anddrawings are for explaining and describing the embodiment only, not forlimiting the scope of protection of the present disclosure. For elementsthe same as or similar to above embodiments, the same or similarreference numerals are used to indicate the same or similar elements.

Moreover, use of ordinal terms such as “first”, “second”, “third”, etc.,in the specification and claims to modify an element does not by itselfconnote any priority, precedence, or order of one claim element overanother or the temporal order in which acts of a method are performed,but are used merely as labels to distinguish one claim element having acertain name from another element having the same name (but for use ofthe ordinal term) to distinguish the claim elements.

First Embodiment

FIG. 1 shows a top view of two adjacent pixels of a display apparatusaccording to a first embodiment of the present disclosure. FIG. 2A showsa cross-sectional view of a pixel of a display apparatus along across-sectional line 2A-2A of FIG. 1. In the first embodiment, a displayapparatus includes a first substrate 10, a second substrate 20, and adisplay medium (such as a liquid crystal LC) disposed between the firstsubstrate and the second substrate (FIG. 2A). The first substrate 10 andthe second substrate 20 can be realized by such as an array substrate(such as a thin-film transistor (TFT) substrate) and a color filter (CF)substrate respectively. In an embodiment as indicated in FIG. 1, thefirst substrate 10 includes a first base plate S1, and a plurality ofgate lines GL and a plurality of data lines DL formed on the first baseplate S1, wherein two adjacent data lines (such as the first data lineDL1 and the second data line DL2) intersect with the gate line GL todefine a pixel PX. As indicated in FIG. 1 or 2A, the pixel PX includes apixel electrode layer PE and a common electrode layer Com formed overthe pixel electrode layer PE. The pixel electrode layer PE iselectrically connected to one of the first data line DL1 and the seconddata line DL2. In the first embodiment, the pixel electrode layer PE iselectrically connected to the first data line DL1; a transistor TFT isdisposed correspondingly to the intersection between the gate line GLand the first data line DL1 is connected to the first data line DL1 inseries.

Besides, FIG. 2A only illustrates relative positions between the datalines DL, the pixel electrode layer PE, the common electrode layer Com,and the shielding pattern BM of one single pixel in the firstembodiment. Furthermore, an insulating layer IL is formed between thecommon electrode layer Com and the pixel electrode layer PE, and aninterlayer dielectric IDL disposed on the first base plate S1 isdisposed under the pixel electrode layer PE. As disclosed in the presentembodiment, the pixel electrode layer PE can be realized by an electrodesuch as a transparent conductive film (an indium tin oxide (ITO) film),and the common electrode layer Com formed over the pixel electrode layerPE can be realized by a patterned electrode such as a patterned ITO filmhaving at least two or more slits extending along the data lines. Theelectric field generated between the common electrode layer Com and theedge of the pixel electrode PE can be used to rotate liquid crystalmolecules LC (for example, in the FFS display mode). In an embodiment,the second substrate 20 includes a second base plate S2 and a shieldingpattern (such as a black matrix BM) disposed on the second base plateS2. The shielding pattern is disposed right over the data lines (such asDL1 and DL2), not only separating different colors of photo-resistancebut also shielding the data lines.

Refer to FIG. 1. Examples of the slits of the common electrode layer Cominclude a first slit SL1 nearest to the first data line DL1, a secondslit SL2 nearest to the second data line DL2, a third slit SL3, and afourth slit SL4 disposed between the first slit SL1 and the second slitSL2. Although it is exemplified in the present embodiment that fourslits correspond to one pixel PX, but the present disclosure is notlimited thereto, and the quantity of slits can be adjusted according toactual needs. In the present embodiment, the end portions of the slitshave special design. For example, most end portions bend to form a crabshape for compressing the generated dark crinkles. Of the first slit SL1nearest to the first data line DL1, the end portion (such as the part ofthe first end portion EP1 marked with a solid circle as indicated inFIG. 1) adjacent to the gate line G does not have a bend, and only theother end portion (such as the part of the second end portion EP2 markedwith a dotted circle as indicated in FIG. 1) has a bend and specificallybends towards the second slit SL2. Of the second slit SL2 nearest to thesecond data line DL2, the end portion (such as the part of the fourthend portion EP4 marked with a solid circle as indicated in FIG. 1) awayfrom the gate line GL does not have a bend, and only the other part ofthe end portion (such as the part of the third end portion EP3 markedwith a dotted circle as indicated in FIG. 1) has a bend and specificallybends towards the first slit SL1.

Suppose the two ends of the first slit SL1 nearest to the first dataline DL1 both have a bend (that is, the first end portion EP1 also has abend), and/or the two ends of the second slit SL2 nearest to the seconddata line DL2 both have a bend (that is, the fourth end portion EP4 alsohas a bend). Then, the first slit SL1 and/or the second slit SL2 of thecommon electrode layer, being too close to the data lines thereunder,may even overlap and expose the data lines thereunder, and affect thedisplay quality. Referring to FIG. 2B, a cross-sectional view of a pixelof a display apparatus is shown. The first slit SL1 nearest to the firstdata line DL1 already exposes a portion of the first data line DL1thereunder. Refer to the pattern of the common electrode layer Com′ asindicated in FIG. 2B. During operation, signals are continuouslyprovided to the data line (such as the first data line DL1). If the dataline is not appropriately shielded by the common electrode layer Com′,the electric field will continuously be interfered with by the signalsof the data line (such as upsurge from the electric field of datalines), and affect the display quality of the pixel display. Forexample, the pixel might illuminate when it should not be turned on. Incomparison to FIG. 2B, the special design of the slit end portions ofthe common electrode layer Corn according to the present embodiment(such as FIG. 2A) effectively avoids the common electrode layer Cornbeing too close to or even exposing the data lines thereunder, such thatdisplay quality of the display apparatus is improved and becomes morestable. Moreover, during the patterning process of the common electrodelayer, even when the positions of the slits are slightly biased, thecommon electrode layer will not expose the data lines thereunder. Thus,the design of the present embodiment also increases product conformityrate.

Second Embodiment

FIG. 3 shows a top view of two adjacent pixels of a display apparatusaccording to a second embodiment of the present disclosure. The secondembodiment and the first embodiment have the same design of slit endportions of the common electrode layer (the same reference numerals areused for the same components). For example, of the first slit SL1nearest to the first data line DL1, the first end portion EP1 adjacentto the gate line GL does not have a bend; of the second slit SL2 nearestto the second data line DL2, the fourth end portion EP4 away from thegate line GL does not have a bend either. Other remaining end portionsof the slits have the bend. Details of the components are described withreference to the first embodiment, and are not repeated here. The firstembodiment and the second embodiment mainly differ in the shape of thepixel.

In the first embodiment, the pixel is a parallelogram, and the angleθ_(M) formed by the data line (such as the first data line DL1, thesecond data line DL2) and the extending direction of the gate line GL isan acute angle (FIG. 1). Furthermore, for the adjacent pixel disposed onthe same column but the next row, the angle formed by the data line andthe extending direction of the gate line GL is also an acute angle, butthe data lines of two adjacent pixels form a obtuse angle (

-shaped, not 180°). That is, two domains are formed in two adjacentpixels of the same column.

In the second embodiment, the pixel is a rectangle, and the angle θ_(V)formed by the data line and the extending direction of the gate line GLis a right angle (FIG. 3). Furthermore, for the pixel disposed on thesame column but the next row, the angle formed by the data line and theextending direction of the gate line GL is also a right angle. That is,no domain is formed in two adjacent pixels of the same column.

No matter what shape the pixel has and no matter whether the angleformed by the data line and the extending direction of the gate line GLis an acute angle or a right angle, the design of slit end portions ofthe common electrode layer of the present disclosure is still applicablethereto.

Third Embodiment

FIG. 4A and FIG. 4B respectively show a top view of two adjacent pixelsof a display apparatus according to a third embodiment of the presentdisclosure. The two adjacent pixels respectively have 3 slits and 2slits in a pixel region. The design of slit end portions of the commonelectrode layer is the same in the third embodiment and the firstembodiment. The same reference numerals are used for the samecomponents. For example, of the first slit SL1 nearest to the first dataline DL1, the first end portion EP1 adjacent to the gate line GL doesnot have a bend; of the second slit SL2 nearest to the second data lineDL2, the fourth end portion EP4 away from the gate line GL does not havea bend either. Other remaining end portions of the slits have the bend.The first end portion EP1 and the fourth end portion EP4 have differentquantities of slits. Details are described in the first embodiment, andare not repeated here. Furthermore, the pixel PX illustrated in FIG. 4Aand FIG. 4B further includes a wire Lcom capable of providing a commonvoltage. For large-scale panels, the uniformity of the common voltageapplied thereto can remain the same or can be increased. No matter thepixel PX has the wire Lcom or not in an implementation, the presentdisclosure still can be used thereto.

The components used in the embodiment of the present disclosure andtheir corresponding relationships are described through theexemplification of a pixel of the display apparatus of the thirdembodiment. Referring to FIG. 5, a schematic diagram of a single pixelof the present disclosure is shown. Details of the components notillustrated in FIG. 5 can be obtained with reference to the descriptionsand drawings disclosed above (such as FIG. 2A). In an embodiment, thedisplay apparatus includes a first substrate 10, a second substrate 20,and a display medium (such as a liquid crystal layer LC) disposedbetween the first substrate 10 and the second substrate 20 (FIG. 2A). Inthe first substrate 10, two adjacent data lines (such as the first dataline DL1 and the second data line DL2) disposed on the first base plateS1 intersect with the gate line GL to define a pixel PX. The pixel PXincludes a pixel electrode layer PE and a common electrode layer Comformed over the pixel electrode layer PE (FIG. 2A). In the thirdembodiment, the pixel electrode layer PE is electrically connected tothe first data line DL1, and a transistor TFT is disposedcorrespondingly to the intersection between the gate line GL and thefirst data line DL1 is connected to the first data line DL1 in series.Additionally, the common electrode layer of the pixel PX includes atleast two slits. In the third embodiment, the quantity of slits isexemplified by 3 (FIGS. 4A, 4B, 5). As indicated in FIG. 5, the commonelectrode layer of the pixel PX includes a first slit SL1 nearest to thefirst data line DL1, a second slit SL2 nearest to the second data lineDL2, and a third slit SL3 disposed between the first slit SL1 and thesecond slit SL2.

In an embodiment, the first slit SL1 has a first end portion EP1adjacent to the gate line GL, a second end portion EP2 away from thegate line GL, and a first straight portion 310 is disposed between thefirst end portion EP1 and the second end portion EP2 to connect thefirst end portion EP1 and the second end portion EP2. The second slithas a third end portion EP3 adjacent to the gate line GL, a fourth endportion EP4 away from the gate line GL, and a second straight portion320 is disposed between the third end portion EP3 and the fourth endportion EP4 to connect the third end portion EP3 and the fourth endportion EP4. Similarly, the third slit SL3 has a fifth end portion EP5adjacent to the gate line GL, a sixth end portion EP6 away from the gateline GL, and a third straight portion 330 disposed between the fifth endportion EP5 and the sixth end portion EP6 to connect the fifth endportion EP5 and the sixth end portion EP6. In an embodiment, the firststraight portion 310, the second straight portion 320 and the thirdstraight portion 330 extend along the first data line DL1.

A largest distance from the edge E1 _(BI) of the first end portion EP1near the first data line DL1 to the first data line DL1 is defined as afirst distance d1. A largest distance from the edge E2 _(BI) of thesecond end portion EP2 near the first data line DL1 to the first dataline DL1 is defined as a second distance d2. A largest distance from theedge E3 _(BI) of the third end portion EP3 near the second data line DL2to the second data line DL2 is defined as a third distance d3. A largestdistance from the edge E4 _(BI) of the fourth end portion EP4 near thesecond data line DL2 to the second data line DL2 is defined as a fourthdistance d4. As indicated in FIG. 5, the first distance d1 is smallerthan the second distance d2, and the third distance d3 is larger thanthe fourth distance d4. Moreover, in an embodiment, the first distanced1 is smaller than the third distance d3, and the fourth distance d4 issmaller than the second distance d2.

Moreover, an angle is formed between each slit end portion and astraight portion connected thereto. For example, the first end portionEP1 of the first slit SL1 and the side of the first straight portion 310adjacent to the first data line DL1 form a first angle θ₁. The secondend portion EP2 and the side of the first straight portion 310 away fromthe first data line DL1 form a second angle θ₂. The third end portionEP3 of the second slit SL2 and the side of the second straight portion320 away from the second data line DL2 form a third angle θ₃. The fourthend portion EP4 and the side of the second straight portion 320 adjacentto the second data line DL2 form a fourth angle θ₄. The fifth endportion EP5 of the third slit SL3 and the side of the third straightportion 330 adjacent to the first data line DL1 form a fifth angle θ₅.The sixth end portion EP6 and the side of the third straight portion 330away from the first data line DL1 form a sixth angle θ₆. In anembodiment, the first angle θ₁ is larger than the second angle θ₂, thethird angle θ₃, the fifth angle θ₅, and the sixth angle θ₆ as well. Inan embodiment, the fourth angle θ₄ is larger than the second angle θ₂,the third angle θ₃, the fifth angle θ₅, and the sixth angle θ₆ as well.In an embodiment, the first angle θ1 is substantially equivalent to thefourth angle θ4.

In an embodiment, the first angle θ1 and the fourth angle θ4 aresubstantially equal to (or close to) 180°. That is, the first endportion EP1 of the first slit SL1 does not form a bend configurationwith the first straight portion 310 of the first slit SL1, and thefourth end portion EP4 of the second slit SL2 does not form a bendconfiguration with the second straight portion 320 of the second slitSL2 either (the two portions correspond to one diagonal of the pixel).Additionally, in an embodiment, the first slit SL1 nearest to the firstdata line DL1 and the second slit SL2 nearest to the second data lineDL2 both are designed to have a bending end portion at the positioncorresponding to one diagonal of the pixel, and the two end portionsbend towards each other. For example, the second end portion EP2 of thefirst slit SL1 bends towards the second slit SL2, and the third endportion EP3 of the second slit SL2 bends towards the first slit SL1(both the second end portion EP2 and the third end portion EP3correspond to the other diagonal of the pixel).

Additionally, the embodiment is exemplified by the area formed by an endportion tangent line of a slit end portion, an edge, and an edgeextension line of a corresponding straight portion. Referring to FIG. 6,another schematic diagram of a single pixel of the present disclosure isshown. Similarly, the common electrode layer of FIG. 6 includes a firstslit SL1 (including a first end portion EP1, a first straight portion310 and a second end portion EP2), a second slit SL2 (including a thirdend portion EP3, a second straight portion 320 and a fourth end portionEP4) and a third slit SL3 (including a fifth end portion EP5, a thirdstraight portion 330 and a sixth end portion EP6). Details are describedwith reference to the above description, and are not repeated here. Afirst end portion tangent line E1 _(CL) of the first end portion EP1parallel to the gate line GL, a first edge extension line E1 _(ST) ofthe first straight portion 310 adjacent to the first data line DL1, andan edge E1 _(BI) of the first end portion EP1 near the first data lineDL1 form a first area A1. A second end portion tangent line E2 _(CL) ofthe second end portion EP2 parallel to the gate line GL, a first edgeextension line E1 _(ST), and an edge E2 _(BI) of the second end portionEP2 near the first data line DL1 form a second area A2. Similarly, athird end portion tangent line E3 _(CL) of the third end portion EP3parallel to the gate line GL, a second edge extension line E2 _(ST) ofthe second straight portion adjacent to the second data line DL2, and anedge E3 _(BI) of the third end portion EP3 near the second data line DL2form a third area A3. A fourth end portion tangent line E4 _(CL) of thefourth end portion EP4 parallel to the gate line GL, a second edgeextension line E2 _(ST), and an edge E4 _(BI) of the fourth end portionEP4 near the second data line DL2 form a fourth area A4. The first areaA1 is smaller than the second area A2. The third area A3 is larger thanthe fourth area A4. Additionally, in an embodiment, the first endportion EP1 and the third end portion EP3 have different bendingdegrees, and the first area A1 is smaller than the third area A3. In anembodiment, the fourth end portion EP4 and the second end portion EP2have different bending degrees, and the fourth area A4 is smaller thanthe second area A2.

Besides, most slit end portions bend to form a crab shape forcompressing the generated dark crinkles therein. In an embodiment, apixel has a non-bending design for the first end portion EP1 of thefirst slit SL1 nearest to the first data line DL1 and the fourth endportion EP4 of the second slit SL2 nearest to the second data line DL2,such that the pixel electrode can shield the first data line DL1 and thesecond data line DL2 thereunder. However, the slit end portions adjacentto the data line do not bend, and cannot compress the dark crinklestherein. In an embodiment, the width of the slit end potion adjacent tothe data line can be adjusted. For example, as the width of the slit endpotion is reduced, the electric field will be intensified, the luminancewill be increased and the expansion of dark crinkles will becompensated, such that dark crinkles will be obscured. In an embodiment,on the same horizontal line (such as the horizontal line HL1 of FIG.7A), the width of the slit end potion adjacent to the data line issmaller than that away from the data line.

Referring to FIG. 7A, an alternate schematic diagram of a single pixelof the present disclosure is shown. FIG. 7A explains the design of thewidth of the slit end portion of an embodiment. FIG. 7B shows across-sectional view of FIG. 7A using a horizontal line HL1 as across-sectional line. The fourth end portion EP4 has a first width W1 onthe horizontal line HL1. The second end portion EP2 has a second widthW2 on the horizontal line HL1. The horizontal line HL1 is substantiallyparallel to the extending direction of the gate line GL (such as thex-axial direction). In an embodiment, the first width W1 is smaller thanthe second width W2. Moreover, the sixth end portion EP6 of the thirdslit SL3 disposed between the first slit SL1 and the second slit SL2 hasa third width W3 on the horizontal line HL1. In an embodiment, the firstwidth W1, exemplarily but not restrictively, is smaller than the thirdwidth W3. As indicated in FIG. 7B, as the width (such as W1) of the slitend potion (such as the fourth end portion EP4) adjacent to the seconddata line DL2 is reduced, the electric field will be intensified, theluminance will be increased, and the expansion of dark crinkles will becompensated.

Fourth Embodiment-Sixth Embodiment

FIG. 8 shows a top view of two adjacent pixels of a display apparatus aaccording to a fourth embodiment of the present disclosure. FIG. 9 showsa top view of two adjacent pixels of a display apparatus according to afifth embodiment of the present disclosure. FIG. 10 shows a top view oftwo adjacent pixels of a display apparatus according to a sixthembodiment of the present disclosure. In the drawings of the fourthembodiment to the sixth embodiment, the same reference numerals are usedfor the components common to that of previous embodiments. It should benoted that the structures and relationships between components in thethird embodiment are applicable to other embodiments of the presentdisclosures (the first, the second, and the fourth to the sixthembodiment). Details of the components are described with reference toabove descriptions, and are not repeated here.

The common electrode layer of the fourth embodiment is the same as thatof the third embodiment except that the quantity of slits of a pixelchanges to 4 (the fourth embodiment) from 3 (the third embodiment). Likethe pixel of the first and the third embodiment, the pixel of the fourthembodiment has a parallelogram, and the angle formed by the data line(such as the first data line DL1 or the second data line DL2) and theextending direction of the gate line GL is an acute angle.

The structure of the common electrode layer of the fifth embodiment andthe sixth embodiment is the same as that of the third embodiment exceptthat the quantity of slits of a pixel changes to 4 and 5 (the fifthembodiment and the sixth embodiment) from 3 (the third embodiment).Additionally, like the pixel of the second embodiment, the pixel of thefifth and the sixth embodiment has a rectangular shape, and the angleformed by the data line and the extending direction of the gate line GLis a right angle.

It should be noted that in FIG. 9 (the fifth embodiment), the transistorTFT of a pixel is located at the bottom left corner (the transistor TFTis located at the bottom right corner in other embodiments), and theslits, arranged from left to right, respectively are the second slitSL2, the fourth slit SL4, the third slit SL3 and the first slit SL1. Thefifth embodiment also conforms to the non-bending design disclosed inthe present disclosure. That is, both the first end portion EP1 of thefirst slit SL1 nearest to the first data line DL1 and the fourth endportion EP4 of the second slit SL2 nearest to the second data line DL2do not have any bends. Additionally, as indicated in FIG. 9, the widthof the first slit SL1 and the second slit SL2 in the x-axial directionis slightly larger than that of the third slit SL3 and the fourth slitSL4 in the x-axial direction.

Moreover, FIG. 10 (the sixth embodiment), the first data line DL1 andthe second data line DL2 are respectively marked at the left and theright of the pixel (this is different from other embodiments). Thetransistor TFT of a single pixel is located at the bottom right corner,and the slits, arranged from left to right, respectively are the firstslit SL1 nearest to the first data line DL1, the third slit SL3, thefourth slit SL4, and the second slit SL2 nearest to the second data lineDL2. The sixth embodiment also conforms to the non-bending designdisclosed in the present disclosure. That is, both the first end portionEP1 of the first slit SL1 and the fourth end portion EP4 of the secondslit SL2 dot have any bends. Additionally, as indicated in FIG. 10, thewidth of the first slit SL1 and the second slit SL2 in the x-axialdirection is approximately equivalent to that of the third slit SL3 andthe fourth slit SL4 in the x-axial direction, but the present disclosureis not limited thereto.

According to the display apparatus disclosed in an embodiment of thepresent disclosure, the slit end portions of the common electrode layerformed on the pixel electrode layer has special pattern design. Forexample, most end portions bend to form a crab shape for compressing thegenerated dark crinkles therein. Each slit end portion nearest to one ofthe two data lines only bends at one end (one end is bent but the otherend is straight), hence effectively avoiding the slit end portion beingtoo close to or even exposing the data lines thereunder and accordinglyavoiding the problem of electric field interference. Furthermore, duringthe patterning process of the common electrode layer, even when theposition of the slits is slightly biased, the design of the embodimentstill avoids the data line under the common electrode layer beingexposed. Thus, the design disclosed in the embodiment of the presentdisclosure provides stable and superior display quality to the displayapparatus using the same, and also increases product conformity rate.

The structures of FIG. 1, FIG. 3, FIG. 4, FIG. 8-FIG. 10 are fordescribing some embodiments of the present disclosure, not for limitingthe scope of the present disclosure. Other embodiments having differentstructures are still within the scope of protection of the presentdisclosure. Examples of different structures are as follows. The commonelectrode layer may have different quantities of slits (such as 2˜n, nis a positive integer 2). The bending parts of the slit end portions mayhave different bending angles. The slits of the pixel PX may have thesame or different widths. The transistor TFT may be connected to thefirst data line or the second data line in series. The pixel PX may ormay not include a wire Lcom capable of providing a common voltage. In apixel, the angle formed by the data line and the extending direction ofthe gate line GL may be an acute angle or a right angle. Adjacent pixelsmay or may not have multiple domains. A person ordinary skilled in theart can make corresponding adjustment and modification to relevantstructures of the present disclosure to meet the actual needs in theapplications.

While the invention has been described by way of example and in terms ofthe preferred embodiment(s), it is to be understood that the inventionis not limited thereto. On the contrary, it is intended to cover variousmodifications and similar arrangements and procedures, and the scope ofthe appended claims therefore should be accorded the broadestinterpretation so as to encompass all such modifications and similararrangements and procedures.

What is claimed is:
 1. A display apparatus, comprising: a firstsubstrate comprising; a first data line and a second data linerespectively disposed over a first base plate; and a pixel comprising: apixel electrode layer electrically connected to one of the first dataline and the second data line; and a common electrode layer formed overthe pixel electrode layer, wherein the common electrode layer comprisesa first slit nearest to the first data line, wherein the first slit hasa first end and a second end, and the first slit is bent at the firstend of the first slit but is not bent at the second end of the firstslit; a second substrate; and a display medium disposed between thefirst substrate and the second substrate.
 2. The display apparatusaccording to claim 1, wherein the first slit is bent away from the firstdata line.
 3. The display apparatus according to claim 2, wherein alargest distance from the first end of the first slit to the first dataline is greater than a largest distance from the second end of the firstslit to the first data line.
 4. The display apparatus according to claim1, wherein the first slit is bent toward the first data line.
 5. Thedisplay apparatus according to claim 1, wherein the first substratefurther comprises a gate line disposed over the first base plate, and atransistor is disposed correspondingly to an intersection between thegate line and the first data line.
 6. The display apparatus according toclaim 5, wherein the first data line and the second data line intersectwith the gate line.
 7. The display apparatus according to claim 6,wherein the first end of the first slit is away from the gate line, andthe second end of the first slit is nearest to the gate line.
 8. Thedisplay apparatus according to claim 7, wherein the common electrodelayer further comprises a second slit nearest to the second data line,and the second slit has a first end away from the gate line and a secondend nearest to the gate line.
 9. The display apparatus according toclaim 8, wherein the second slit is bent at the second end of the secondslit but is not bent at the first end of the second slit.
 10. Thedisplay apparatus according to claim 9, wherein the first slit is bentaway from the first data line, and the second slit is bent away from thesecond data line.
 11. The display apparatus according to claim 8,wherein a distance from the second end of the first slit to the gateline is different from a distance from the second end of the second slitto the gate line.
 12. The display apparatus according to claim 11,wherein the distance from the second end of the first slit to the gateline is less than the distance from the second end of the second slit tothe gate line.
 13. The display apparatus according to claim 11, whereinthe distance from the second end of the first slit to the gate line isgreater than the distance from the second end of the second slit to thegate line.
 14. The display apparatus according to claim 1, wherein thecommon electrode layer further comprises a second slit, wherein a lengthof the first slit is different from a length of the second slit along anextending direction of the first data line.
 15. The display apparatusaccording to claim 14, wherein the length of the first slit is less thanthe length of the second slit along the extending direction of the firstdata line.